package com.cy.filters;

import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.core.Ordered;
import org.springframework.http.HttpStatus;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;

/**
 * @ClassName AuthGlobalFilter
 * @Description:类描述
 * @Author Tedu
 * @Date 2021/6/4 17:29
 * @Version V1.0
 **/
@Component
public class AuthGlobalFilter implements GlobalFilter, Ordered {
    @Override
    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
        String token=exchange.getRequest()
                .getQueryParams().getFirst("token");
        if(!"admin".equals(token)){
            System.out.println("认证失败");
            exchange.getResponse().setStatusCode(HttpStatus.UNAUTHORIZED);
            return exchange.getResponse().setComplete();
        }
        //调用chain.filter继续向下游执行
        System.out.println("认证成功");
        return chain.filter(exchange);
    }

    @Override
    public int getOrder() {
        return 0;
    }
}
